getRequestDispatcher(page);
dispatcher.forward(request, response);
]]>
2.浠ｇ悊涓氬姟閫昏緫錛?BR> 3.杞彂騫跺垱寤哄悎閫傝鍥撅紱
鏈鍚庣偣錛孎ront Controller搴旇鍙仛鎺у埗錛屾墍鏈変笟鍔￠昏緫鍜岃璇佹巿鏉冮兘瑕佹妸璐ｄ換濮旀墭緇欏叾浠栫被銆?img src ="http://www.aygfsteel.com/roy/aggbug/12511.html" width = "1" height = "1" />
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瑙嗗浘甯姪綾伙紝灝嗘暟鎹簱涓殑鍘熸暟鎹粍瑁呮垚欏甸潰鎵闇瑕佺殑鍏冪礌錛屼綔鐢細(xì)
1.澶勭悊鍏冩暟鎹紱
2.瑙嗗浘鏁版嵁鍜屼笟鍔″眰鏁版嵁妯″瀷閫傞厤錛?BR> 3.鍜屼笟鍔′唬鐞嗘ā寮忕粨鍚堣繘涓姝ラ殣钘忎笟鍔″疄鐜幫紱
4.鍖呭惈鍊煎璞°?BR> 瑙嗗浘甯姪鍙互鏄疛AVABEAN錛屼篃鍙互鏄疶AGS銆丼ERVLET銆丣SP銆?BR> 涓涓緥瀛?BR>
/**//**A servlet delegates to a command object helper, as
shown in the following excerpt:**/
String resultPage = command.execute(request,response);/**//**The command object helper uses the business
delegate, which is simply implemented as anotherJavaBean helper, as shown in the following excerpt:**/AccountDelegate accountDelegate = newAccountDelegate();]]>
榪欎釜涓嶇敤澶氳浜?jiǎn)锛屾嫤鎴敤鎴风殑璇锋眰锛屽湪WEB涓疄鐜頒釜Filter鎺ュ彛錛岀劧鍚庨厤緗湪WEB.XML涓嬪氨鍙互鐢紝FilterManager宸茬粡鐢辨湇鍔″櫒鎻愪緵鍟嗗啓濂戒簡(jiǎn)錛屽熀浜庡簲鐢ㄤ笂鍙渶瀹炵幇灝卞彲浠ヤ簡(jiǎn)錛岃繖閲屽叧娉ㄧ殑鏄繖涓ā寮忚В鍐崇殑闂銆?BR> 1.瀹㈡埛鏈夋病琚巿鏉冿紵
2.瀹㈡埛鏄惁鍏鋒湁鏈夋晥浼?xì)璇濆Q?BR> 3.瀹㈡埛IP鍦板潃鏄惁鏉ヨ嚜淇′換緗戠粶孌碉紵
4.瀹㈡埛绔紶杈撲嬌鐢ㄤ綍縐嶆柟娉曠紪鐮侊紵
5.瀹㈡埛绔祻瑙堝櫒綾誨瀷鎴戜滑鏀寔鍚楋紵
鎵鏈夎繖浜涘皢鍐沖畾璇鋒眰鐨勮漿鍙戯紝浠ュ悗鍚庣畫鐨勬祦紼嬨傚鏋滀笉鐢‵ilter錛屽垯闇瑕佸湪鍏跺悗鐨勬帶鍒朵腑鍋氭潯浠舵祴璇曪紝鐒跺悗鍐嶅鐞嗚姹傦紝涓鑸敤宓屽IF/ELSE灝卞彲瀹屾垚銆備絾緙虹偣鍦ㄤ簬錛?FONT style="BACKGROUND-COLOR: #ffffff" color=#ff0000>
涓嶅綆緇?/FONT>錛屽涓帶鍒跺仛鐨勬潯浠舵祴璇曢兘鐩稿悓銆?BR> 灝嗚繃婊ゅ拰鎺у埗鏀懼湪涓璧鳳紝涓嶅鐏墊椿錛岃繃婊ら氬父鏄彲鍙樼殑錛屾瘮濡備俊浠籌P鍦板潃孌碉紝鎴栬呮槸榪囨護(hù)鐨勬潯浠跺彂鐢熷彉鍖栵紝閮戒細(xì)甯︽潵瀵規(guī)墍鏈夋帶鍒剁殑鍙樻洿銆?BR> 鐏墊椿鍜岀畝鍗曠殑瑙ｅ喅鏂規(guī)硶灝辨槸鐢ㄤ竴縐嶇畝鍗曠殑鍙鍑忕粍浠剁殑鏈哄埗錛屼嬌寰楁瘡涓粍浠跺畬鎴愮壒孌婄殑榪囨護(hù)璇鋒眰銆?BR> 錛堝師鏂囷細(xì)
The key to solving this problem in a flexible and unobtrusive manner is to have a simple mechanism for adding and removing processing components, in which each component completes a specific filtering action.錛?BR> 璐翠釜Filter
public class StandardEncodeFilter extends BaseEncodeFilter {
// Creates new StandardEncodeFilter
public StandardEncodeFilter() { }
public void doFilter
(javax.servlet.ServletRequest
servletRequest,
javax.servlet.ServletResponse
servletResponse,
javax.servlet.FilterChain
filterChain)
throws java.io.IOException,
javax.servlet.ServletException {
String contentType =
servletRequest.getContentType();
if ((contentType == null) ||
contentType.equalsIgnoreCase(
"application/x-www-form-urlencoded")) {
translateParamsToAttributes
(servletRequest,servletResponse);
}
filterChain.doFilter(servletRequest,
servletResponse);
}
private void translateParamsToAttributes(
ServletRequest request,
ServletResponse response){
Enumeration paramNames =
request.getParameterNames();
while (paramNames.hasMoreElements()) {
String paramName = (String)
paramNames.nextElement();
String [] values;
values = request.getParameterValues
(paramName);
System.err.println("paramName = "
+ paramName);
if (values.length == 1)
request.setAttribute(paramName,
values[0]);
else
request.setAttribute(paramName, values);
}
}
}
// Creates new StandardEncodeFilter
public StandardEncodeFilter() { }
public void doFilter
(javax.servlet.ServletRequest
servletRequest,
javax.servlet.ServletResponse
servletResponse,
javax.servlet.FilterChain
filterChain)
throws java.io.IOException,
javax.servlet.ServletException {
String contentType =
servletRequest.getContentType();
if ((contentType == null) ||
contentType.equalsIgnoreCase(
"application/x-www-form-urlencoded")) {
translateParamsToAttributes
(servletRequest,servletResponse);
}
filterChain.doFilter(servletRequest,
servletResponse);
}
private void translateParamsToAttributes(
ServletRequest request,
ServletResponse response){
Enumeration paramNames =
request.getParameterNames();
while (paramNames.hasMoreElements()) {
String paramName = (String)
paramNames.nextElement();
String [] values;
values = request.getParameterValues
(paramName);
System.err.println("paramName = "
+ paramName);
if (values.length == 1)
request.setAttribute(paramName,
values[0]);
else
request.setAttribute(paramName, values);
}
}
}
]]>
瀹為檯涓婏紝鎴戣寰桱2EE妯″紡鏇磋薄鏄疓RASP妯″紡鐨勬墿灞曞拰瀹炵幇錛屾ā寮忕殑榪愮敤璧峰埌緇勪歡鐨勪綔鐢紝鍗寵兘浣庤﹀悎錛岄珮鍐呰仛錛屾彁楂橀噸鐢ㄦэ紝浣垮緱緇勪歡鎴栧眰涔嬮棿鐨勫彉鏇村鐩鎬簰涓嶅ぇ錛屼究浜庣淮鎶ゅ拰鍙樻洿銆佹墿灞曘?BR> GRASP妯″紡錛圙eneral Responsibility Assignment Software Patterns)鏄疧OA鍜岀郴緇熻璁＄殑鍩虹錛屽寘鎷?FONT style="BACKGROUND-COLOR: #000080" color=#ffffff>淇℃伅涓撳銆佸垱寤鴻呫侀珮鍐呰仛銆佷綆鑰﹀悎鍜屾帶鍒跺櫒銆佸鎬併佷腑浠嬨佺函铏氭瀯銆佸彈淇濇姢鍙樺寲銆?BR> J2EE妯″紡濡傚浘
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